Ordering by number: this is C088456 (also carried as 3310104352), the Chicago Pneumatic seal plate. Seals like this one are consumables in a pump they are cheap, they age with heat and hours, and replacing the whole set during a teardown saves a second strip-down later.
It shows up in the parts breakdown for the CP 0020 Sump Pump. Compare it to the reference callout on the diagram to be sure it is the position you need.
The full diagram library indexes every breakdown we publish, and the CP tool catalog has the tools these parts go into. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: C088456
- Also listed as: 3310104352
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-C088456
- Listed on breakdowns for: CP 0020 Sump Pump
